How long is the flight from Houston to London Heathrow Airport?

Departing from Houston to London Heathrow Airport will take you 16h 05m. Airlines will cover a distance of 4835 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from Houston to London Heathrow Airport round-trip?

Cheapflights users have booked flights from Houston to London Heathrow Airport round-trip from £352. Other airlines that can offer you cheap pricing are United Airlines, from £392, and British Airways, from £420. These flights start at 43% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Houston to London Heathrow Airport one-way?

The cheapet airlines for a one-way flight from Houston to London Heathrow Airport are WestJet (£224), British Airways (£304), and KLM (£304).

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular airlines that fly from Houston to London Heathrow Airport?

The most popular airlines flying from Houston to London Heathrow Airport are British Airways, United Airlines and Lufthansa. Something to consider prior to booking your flight.

Can I find deals for flights from Houston to Heathrow that include hotel bookings?

Yes. In addition to deals on Houston to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Houston to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Heathrow.

Can I find deals for business class flights from Houston to Heathrow?

Yes. Cheapflights offers flight deals from Houston to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£206+ Flights from Houston to London Heathrow Airport

Cheapflights Tip: The best prices from Houston to London Heathrow are usually found in February or October, booked 74 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Houston to Heathrow

Round-trip from	£424
One-way from	£206
Popular in	June
Cheapest in	February
Average price	£503

Virgin Atlantic
9/11-25/11
2 total stops
26h 24m total
Houston to London

Search Deals

18/11
2 total stops
23h 36m total
Houston to London

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£113 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Find flight deals from Houston to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Houston to Heathrow
Explore the most affordable flight options available from Houston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 October 2025.

Tue 4/1111:49IAH - LHR

1 stop12h 36mVirgin Atlantic

Tue 11/1115:50LHR - IAH

1 stop14h 07mVirgin Atlantic

Deal found 27/10£421

Sun 9/1113:36IAH - LHR

1 stop13h 24mVirgin Atlantic

Tue 25/1106:30LHR - IAH

1 stop13h 00mVirgin Atlantic

Deal found 28/10£424

Sun 9/1114:32HOU - LHR

1 stop12h 28mVirgin Atlantic

Tue 25/1110:45LHR - HOU

1 stop13h 08mVirgin Atlantic

Deal found 26/10£425

Mon 27/1012:30IAH - LHR

2 stops27h 05mAir Canada

Tue 11/1106:50LHR - IAH

2 stops20h 49mAir Canada

Deal found 26/10£431

Sun 9/1117:25IAH - LHR

1 stop36h 25mAir Canada

Tue 25/1106:50LHR - IAH

2 stops20h 49mAir Canada

Deal found 26/10£433

Wed 5/1105:30IAH - LHR

1 stop21h 15mDelta

Tue 11/1106:20LHR - IAH

1 stop13h 35mDelta

Deal found 27/10£434

Sun 9/1112:35IAH - LHR

1 stop13h 15mDelta

Tue 25/1106:20LHR - IAH

1 stop13h 35mDelta

Deal found 26/10£435

Sun 9/1113:36IAH - LHR

1 stop13h 24mVirgin Atlantic

Thu 20/1106:20LHR - IAH

1 stop13h 35mVirgin Atlantic

Deal found 27/10£437

Tue 4/1118:44HOU - LHR

1 stop10h 56mMultiple Airlines

Tue 11/1108:55LHR - HOU

1 stop14h 58mMultiple Airlines

Deal found 27/10£443

Sun 9/1110:40HOU - LHR

1 stop13h 45mDelta

Tue 25/1108:55LHR - HOU

2 stops20h 12mDelta

Deal found 28/10£444

Tue 11/1116:24HOU - LHR

1 stop11h 36mBritish Airways

Tue 18/1108:20LHR - HOU

1 stop15h 34mBritish Airways

Deal found 27/10£446

Sun 9/1114:32HOU - LHR

2 stops14h 18mVirgin Atlantic

Thu 20/1111:30LHR - HOU

2 stops18h 10mVirgin Atlantic

Deal found 27/10£448

Best flights from Houston to Heathrow
Discover carefully curated flight deals from Houston to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 October 2025.

Mon 19/115:03IAH - LHR

1 stop11h 42mMultiple Airlines

Thu 29/106:20LHR - IAH

1 stop13h 35mMultiple Airlines

Deal found 26/10£443

Wed 4/309:40IAH - LHR

1 stop16h 10mDelta

Tue 10/306:20LHR - IAH

1 stop13h 35mDelta

Deal found 28/10£443

Wed 12/1110:40HOU - LHR

2 stops16h 05mVirgin Atlantic

Tue 18/1111:30LHR - HOU

2 stops17h 37mVirgin Atlantic

Deal found 26/10£448

Sat 8/1119:50IAH - LHR

1 stop28h 50mUnited Airlines

Thu 20/1106:35LHR - IAH

1 stop15h 35mUnited Airlines

Deal found 28/10£465

Sun 9/1118:40IAH - LHR

1 stop11h 00mDelta

Thu 20/1108:55LHR - IAH

2 stops21h 02mDelta

Deal found 27/10£445

Tue 10/211:09HOU - LHR

1 stop15h 51mVirgin Atlantic

Tue 24/206:30LHR - HOU

2 stops16h 02mVirgin Atlantic

Deal found 25/10£452

Sun 9/1114:32HOU - LHR

1 stop12h 28mDelta

Tue 25/1108:55LHR - HOU

1 stop14h 58mDelta

Deal found 26/10£445

Wed 10/1210:39HOU - LHR

2 stops14h 11mVirgin Atlantic

Thu 18/1210:45LHR - HOU

1 stop13h 09mVirgin Atlantic

Deal found 28/10£454

Wed 12/1110:40HOU - LHR

2 stops16h 05mDelta

Wed 19/1111:30LHR - HOU

2 stops17h 37mDelta

Deal found 28/10£448

Tue 3/312:55IAH - LHR

1 stop14h 25mDelta

Thu 12/306:30LHR - IAH

1 stop13h 00mDelta

Deal found 26/10£449

Wed 26/1118:48HOU - LHR

1 stop10h 52mDelta

Fri 5/1210:45LHR - HOU

1 stop13h 07mDelta

Deal found 26/10£450

Wed 26/1118:48HOU - LHR

1 stop10h 52mDelta

Wed 3/1208:55LHR - HOU

1 stop14h 57mDelta

Deal found 26/10£450

Wed 7/118:37IAH - LHR

1 stop11h 03mDelta

Wed 14/108:55LHR - IAH

2 stops21h 03mDelta

Deal found 27/10£451

Wed 4/310:05HOU - LHR

1 stop16h 55mDelta

Tue 10/306:20LHR - HOU

2 stops20h 26mDelta

Deal found 27/10£451

Mon 9/205:25IAH - LHR

1 stop19h 00mDelta

Mon 16/214:45LHR - IAH

1 stop29h 10mDelta

Deal found 26/10£453

Wed 11/212:40IAH - LHR

1 stop11h 45mDelta

Mon 23/217:35LHR - IAH

1 stop26h 20mDelta

Deal found 28/10£453

Wed 25/213:00HOU - LHR

1 stop11h 25mDelta

Tue 10/312:30LHR - HOU

1 stop14h 16mDelta

Deal found 25/10£456

Thu 27/1113:36IAH - LHR

1 stop16h 04mDelta

Thu 4/1206:20LHR - IAH

1 stop13h 35mDelta

Deal found 27/10£475

Fri 28/1107:01IAH - LHR

1 stop17h 24mDelta

Wed 3/1206:20LHR - IAH

1 stop13h 35mDelta

Deal found 26/10£475

Tue 3/313:00HOU - LHR

1 stop11h 25mDelta

Fri 13/308:55LHR - HOU

1 stop17h 51mDelta

Deal found 26/10£478

Tue 3/313:00HOU - LHR

1 stop11h 25mDelta

Thu 12/310:45LHR - HOU

1 stop16h 01mDelta

Deal found 26/10£478

Direct flights from Houston to Heathrow
Explore direct flight options from Houston to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 29 October 2025.

Sun 9/1121:50IAH - LHR

Nonstop9h 00mBritish Airways

Thu 20/1109:35LHR - IAH

Nonstop10h 30mBritish Airways

Deal found 27/10£435

Sun 9/1121:50IAH - LHR

Nonstop9h 00mBritish Airways

Tue 25/1109:35LHR - IAH

Nonstop10h 30mBritish Airways

Deal found 27/10£437

Tue 10/215:50IAH - LHR

Nonstop9h 00mFinnair

Tue 24/209:35LHR - IAH

Nonstop10h 30mFinnair

Deal found 25/10£438

Tue 11/1115:50IAH - LHR

Nonstop9h 00mAmerican Airlines

Wed 19/1109:35LHR - IAH

Nonstop10h 30mAmerican Airlines

Deal found 28/10£439

Wed 26/1115:50IAH - LHR

Nonstop9h 00mBritish Airways

Fri 5/1209:35LHR - IAH

Nonstop10h 30mBritish Airways

Deal found 26/10£440

Sun 9/1121:50IAH - LHR

Nonstop9h 00mAmerican Airlines

Tue 25/1109:35LHR - IAH

Nonstop10h 30mAmerican Airlines

Deal found 26/10£440

Mon 26/121:45IAH - LHR

Nonstop9h 00mIberia

Tue 3/209:35LHR - IAH

Nonstop10h 30mIberia

Deal found 27/10£441

Wed 18/215:50IAH - LHR

Nonstop9h 00mIberia

Wed 25/209:35LHR - IAH

Nonstop10h 30mIberia

Deal found 27/10£443

Wed 14/115:50IAH - LHR

Nonstop9h 00mBritish Airways

Tue 27/109:35LHR - IAH

Nonstop10h 30mBritish Airways

Deal found 27/10£443

Wed 18/215:50IAH - LHR

Nonstop9h 00mAmerican Airlines

Wed 25/209:35LHR - IAH

Nonstop10h 30mAmerican Airlines

Deal found 27/10£445

Sun 11/115:50IAH - LHR

Nonstop9h 00mBritish Airways

Fri 30/109:35LHR - IAH

Nonstop10h 30mBritish Airways

Deal found 27/10£446

Sun 30/1121:50IAH - LHR

Nonstop9h 00mAmerican Airlines

Tue 23/1209:35LHR - IAH

Nonstop10h 30mAmerican Airlines

Deal found 28/10£449

Last-minute flights from Houston to Heathrow
Discover last-minute flight deals from Houston to Heathrow. Data last updated 29 October 2025 and is based on user searches.

Tue 4/1111:49IAH - LHR

1 stop12h 36mVirgin Atlantic

Tue 11/1115:50LHR - IAH

1 stop14h 07mVirgin Atlantic

Deal found 27/10£421

Tue 4/1118:44HOU - LHR

1 stop10h 56mMultiple Airlines

Tue 11/1108:55LHR - HOU

1 stop14h 58mMultiple Airlines

Deal found 27/10£443

Wed 5/1105:30IAH - LHR

1 stop21h 15mDelta

Tue 11/1106:20LHR - IAH

1 stop13h 35mDelta

Deal found 27/10£434

Sun 9/1113:36IAH - LHR

1 stop13h 24mVirgin Atlantic

Tue 25/1106:30LHR - IAH

1 stop13h 00mVirgin Atlantic

Deal found 28/10£424

Sun 9/1114:32HOU - LHR

1 stop12h 28mVirgin Atlantic

Tue 25/1110:45LHR - HOU

1 stop13h 08mVirgin Atlantic

Deal found 26/10£425

Sun 9/1117:25IAH - LHR

1 stop36h 25mAir Canada

Tue 25/1106:50LHR - IAH

2 stops20h 49mAir Canada

Deal found 26/10£433

Sun 9/1112:35IAH - LHR

1 stop13h 15mDelta

Tue 25/1106:20LHR - IAH

1 stop13h 35mDelta

Deal found 26/10£435

Sun 9/1113:36IAH - LHR

1 stop13h 24mDelta

Thu 20/1106:20LHR - IAH

1 stop13h 35mDelta

Deal found 26/10£437

Sun 9/1110:40HOU - LHR

1 stop13h 45mDelta

Tue 25/1108:55LHR - HOU

2 stops20h 12mDelta

Deal found 28/10£444

Sun 9/1114:32HOU - LHR

2 stops14h 18mVirgin Atlantic

Thu 20/1111:30LHR - HOU

2 stops18h 10mVirgin Atlantic

Deal found 27/10£448

Tue 11/1116:24HOU - LHR

1 stop11h 36mBritish Airways

Tue 18/1108:20LHR - HOU

1 stop15h 34mBritish Airways

Deal found 27/10£446

Wed 19/1110:40HOU - LHR

2 stops17h 35mDelta

Thu 27/1106:30LHR - HOU

2 stops22h 37mDelta

Deal found 28/10£449

One-way flights from Houston to Heathrow
Search for one-way flight options from Houston to Heathrow. Find affordable one-way fares based on user searches. Data last updated 29 October 2025.

Tue 18/1105:14IAH - LHR

2 stops23h 36mMultiple Airlines

Deal found 27/10£206

Mon 17/1106:00IAH - LHR

3 stops22h 50mMultiple Airlines

Deal found 27/10£210

Mon 2/222:28IAH - LHR

2 stops32h 22mMultiple Airlines

Deal found 27/10£210

Sun 23/1106:10IAH - LHR

3 stops46h 40mMultiple Airlines

Deal found 27/10£213

Wed 26/1120:35IAH - LHR

3 stops32h 15mMultiple Airlines

Deal found 27/10£213

Sun 1/207:00IAH - LHR

2 stops29h 00mMultiple Airlines

Deal found 27/10£214

Mon 3/1120:35IAH - LHR

3 stops52h 30mMultiple Airlines

Deal found 27/10£216

Wed 3/1213:35IAH - LHR

1 stop17h 15mWestJet

Deal found 28/10£218

Sun 16/1105:14IAH - LHR

1 stop19h 06mMultiple Airlines

Deal found 28/10£219

Wed 4/212:17IAH - LHR

3 stops23h 43mMultiple Airlines

Deal found 27/10£219

Wed 19/1105:14IAH - LHR

2 stops25h 26mMultiple Airlines

Deal found 27/10£220

Mon 24/1106:04IAH - LHR

3 stops22h 46mMultiple Airlines

Deal found 27/10£221

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 19/1

15:03-08:45

1 stop11h 42m

London Heathrow

Thu 29/1

06:20-13:55

1 stop13h 35m

£443

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/3

09:40-07:50

1 stop16h 10m

London Heathrow

Tue 10/3

06:20-14:55

1 stop13h 35m

£443

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 9/11

18:40-11:40

1 stop11h 00m

London Heathrow

Thu 20/11

08:55-23:57

2 stops21h 02m

£445

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Sun 9/11

14:32-09:00

1 stop12h 28m

London Heathrow

Tue 25/11

08:55-17:53

1 stop14h 58m

£445

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 12/11

10:40-08:45

2 stops16h 05m

London Heathrow

Tue 18/11

11:30-23:07

2 stops17h 37m

£448

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 12/11

10:40-08:45

2 stops16h 05m

London Heathrow

Wed 19/11

11:30-23:07

2 stops17h 37m

£448

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 3/3

12:55-09:20

1 stop14h 25m

London Heathrow

Thu 12/3

06:30-14:30

1 stop13h 00m

£449

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 26/11

18:48-11:40

1 stop10h 52m

London Heathrow

Fri 5/12

10:45-17:52

1 stop13h 07m

£450

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 26/11

18:48-11:40

1 stop10h 52m

London Heathrow

Wed 3/12

08:55-17:52

1 stop14h 57m

£450

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 7/1

18:37-11:40

1 stop11h 03m

London Heathrow

Wed 14/1

08:55-23:58

2 stops21h 03m

£451

Flights are sorted by cheapest return flights first.

Deals found on 27/10

Showing 1-10 of 44 results

...

Best time to book a flight from Houston to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Houston with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston to London Heathrow Airport

How far ahead should I book a flight from Houston to London Heathrow Airport?

Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Houston to London Heathrow Airport?

Currently, October is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of £381). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of £648). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HOU to LHR?

It’s typically best to fly out from Houston to London Heathrow Airport in the morning. Doing so could potentially save you 3% on the flight price compared to flying in the afternoon, which is usually more expensive.

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Houston to London Heathrow Airport, such as United Airlines, Iberia, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,001 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,001 reviews

United Airlines

7.4

Good

9,001 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Iberia

7.0

Good

3,001 reviews

United Airlines

7.4

Good

9,001 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Lufthansa

6.8

Okay

7,535 reviews

United Airlines

7.4

Good

9,001 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

British Airways

6.7

Okay

7,483 reviews

United Airlines

7.4

Good

9,001 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

How long is the flight from Houston to London Heathrow Airport?
Departing from Houston to London Heathrow Airport will take you 16h 05m. Airlines will cover a distance of 4835 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Houston to London Heathrow Airport round-trip?
Cheapflights users have booked flights from Houston to London Heathrow Airport round-trip from £352. Other airlines that can offer you cheap pricing are United Airlines, from £392, and British Airways, from £420. These flights start at 43% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Houston to London Heathrow Airport one-way?
The cheapet airlines for a one-way flight from Houston to London Heathrow Airport are WestJet (£224), British Airways (£304), and KLM (£304).
Can I find deals for flights from Houston to Heathrow that include hotel bookings?
Yes. In addition to deals on Houston to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Houston to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Heathrow.
Can I find deals for business class flights from Houston to Heathrow?
Yes. Cheapflights offers flight deals from Houston to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Houston to London Heathrow Airport?
Currently, October is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of £381). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of £648). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from Houston to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest£352	Average£515	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£392	Average£646	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
British Airways	Cheapest£420	Average£683	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Iberia	Cheapest£431	Average£611	FlexibilityNo cancel fee	On-time77%	Search Iberia flights

Fly with Cheapflights

How does Cheapflights help users find flights from Houston to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Houston today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Houston to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Houston to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Houston to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Houston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Not ready to book yet? You can track prices for flights from Houston to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Houston to London Heathrow Airport from £206

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Houston to London Heathrow are usually found in February or October, booked 74 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Houston to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Houston to Heathrow

Cheapest flights from Houston to HeathrowExplore the most affordable flight options available from Houston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 October 2025.

Explore the most affordable flight options available from Houston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 October 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston to London Heathrow Airport that are best for you.

Best time to book a flight from Houston to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Houston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Houston to London Heathrow Airport

How far ahead should I book a flight from Houston to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Houston to Heathrow. Price data was last updated on 24 October 2025.

What is the cheapest month to book a flight from Houston to London Heathrow Airport?

What is the cheapest time of day to fly from HOU to LHR?

Find hourly flight availability from Houston to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 October 2025.

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Houston to London Heathrow Airport, such as United Airlines, Iberia, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Houston to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Houston to London Heathrow Airport?

What are the cheapest airlines flying from Houston to London Heathrow Airport round-trip?

What are the cheapest airlines to fly from Houston to London Heathrow Airport one-way?

Can I find deals for flights from Houston to Heathrow that include hotel bookings?

How can I find direct flights from Houston to Heathrow?

Can I find deals for business class flights from Houston to Heathrow?

What is the cheapest month to book a flight from Houston to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

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Alternative routes for Houston to Heathrow

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Top 4 airlines flying from Houston to Heathrow

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Cheapest flights from Houston to Heathrow
Explore the most affordable flight options available from Houston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 October 2025.